Heel-seat-trimming machine



Dec. 24, 1929. c, ROGGE T AL 1,740,667

HEEL SEAT TRIMMING MACHINE Filed Sept. 19. 1928 3 Sheets$heet lgwuz'ntow J4 C. 20996 J]? Gordon Dec. -.24, 1929.

A. C..R OG GE ET AL HEEL SEAT TRIMMING MACHINE I Filed Sept. 19. 1928 3Sheets-Sheet 2 Dec. 24, 1929. A. c. ROGGE ET AL HEEL SEAT TRIMMINGMACHINE V .3 Sheets-Sheet 5 Filed Sept. 19. 1928 III I l lll PatentedDec. 24, 1929 1,740,667

UNITED, STATES PATENT OFFICE ALBERT C. ROGGE AND HIRAM GORDON, FCOLUMBUS, OH IO nnnn-sna'r-rnmmme monmn Application filed September 19,1928. Serial 110. 806,884.

This invention relates to improvements in cutter to eifect the heel seattrimming or shoe making machinery, and is particularly bevelingoperation above set forth in a quick, directed to an improved automaticmachine effective and economical manner, the maconstructed and adaptedfor the purpose of chine being provided with a guide arranged trimmingthe heel seats of shoes preparatory adjacent to the cutter by which theshoe is In to the application thereto of wooden heels. guarded while inengagement with the cutter. lVooden heels are provided, almost invari-Another object resides inthe provision of ably, with concave uppersurfaces, known in power promotion means formed in connecthe art as heelseats. These surfaces are contion with the machine for the purpose ofrecaved, when 'viewed in vertical section, in ciprocating the cutter,and the provision of 00 order that the outer edges of the heels may beimproved means for holding the shoe in opneatly and closely joined tothe heel uppers erative relationship with the cutter, and in of shoes.Before the application of the various'other features which will be inart wooden heels, which latter are now widely obvious and in partpointed out hereina er.

used in connection with feminine footwear, For a further understandingof the inven- 66 it is necessary-to trim or bevel the lower heel tion,reference is to be had to thefollowing engaging portions of a pair ofshoes so that description and the accompanying drawsuch heel engagingportions will be substanings, wherein: 3 tially convex, when viewed incross-section, Figure 1 is-a view in front elevation of the to form withthe concavity of the heel seats improved heel seat trimming machine com-7 of wo'oden'heel blanks. Heretofore it has prising the presentinvention, been customary on the part of shoe manufac- Figure 2 is aside elevation thereof,

O h p or or fitter, by the use Figure 3 is a vertical sectional viewtaken Q of a manually operated knife or cutter, to through the upperpart of the machine, disremove the surplus material from the shoeclosing more particularly the cutter, the

' sole having engagement with the heel seat shoe supporting jack, andthe drive mechof a heel. This operation, due to its manually anism forthe cutter, executed character, has been relatively slow Figure 4 is ahorizontal sectional view and costly and has required the services oftaken through the cutter, its guiding and 30 skilled shoe operatives inorder to permit of driving mechanism, I

proper trimming of the heel and the-registra- Figure 5 is a transversesectional view on tion thereof with the outer edges of the heel the line5 -5, of Figure 3, v

seat of aheel blank and, therefore, it is a Figure 6 is a similar viewon the line 6-6 primary object of the present invention to of Figure 3,

providean automatic machine for the pur- Figure 7 is a verticalsectional view taken pose of effecting quickly and accurately thethrough the driving connection,- trimming of the heel'seats of shoes inthe Figure 8 is an enlar ed vertical sectional manner aforesaid for thepurpose of expeditview taken through a shoe showing its relaing theoperation, to provide uniform worktion to the movable knife,

9 manship and to reduce the costlof this oper- Figure 9 is a fragmentaryelevational view ation ascompared with the now widely used of a shoehaving a preferred heel seat, and hand method. Figure 10 is aperspective view of a shoe The invention contemplates the provision anda heel showing the shape of the sole after of a machine of thischaracter provided with it has been trimmed.

45 a reciprocating cutter together with an im- Referring moreparticularly to the drawproved adjustable support or jack, arrangedings, the numeral 1 designates the base or beneath the cutter, andadapted for the restandard of, the heel seat trimming machine ception ofa last containing. shoe, the supconstituting the present invention.Tliis port or jack being so disposed as to permit standard maybeformedfrom any suitable the shoe to be presented to the reciprocatingmaterials and it is preferably of such height that the Operator hascontrol of the operations while occupying a standing position. The lowerportion of the standard provides an enlarged base 2 adapted to rest uponany desired foundation. Arranged upon the base a clutch collar 6.Loosely mounted upon the bushing is a pulley 7 which is also formed witha complemental clutch collar 8, the latter being spaced from the collar6 by a leather or other suitable type of clutch disk 9. The disk 9 isconfined between the collars 6 and 8 and is loosely positioned on thebushing 5. This arrangement is such that when the pulley 7 is forcedlongitudinally of the bushing so that the disk 9 is placed undercompression a frictional clutch relationship is es-.

tablished permittingof the rotation of the pulley 7 substantially inunison withthe motor shaft 4. v

To control the operation of the pulley 7 there is provided a foot pedal10 which is pivotally mounted as at 11 on the base 2. One end of thepedal is connected with a bell crank lever 12 which is pivotally mountedas at 13 on the base 2, and the upper end of such lever carries a screw14 which engages with the outer end of the pulley 7. It will be seenthat by pressing downwardly upon the pedal 10 the lever 12 will berocked so as to forcethe collars 6 and 8 into clamping engagement withthe disk 9 to rotate the pulley 7. When the foot' pedal is released aspring 15 is employed to automatical: ly eflect disengagement betweenthe collars 6 and'8 and the disk 8, thereby stopping the rotation of thepulley.

Passing around the pulley 7 is a drive belt 16 which is also trainedover a second pulley 17 mounted upon one end of a crank shaft 18.

.This shaft is journaled for rotation in connection with bearings-19mounted upon a bracket 20 projecting from the upper end of thestandard 1. The standard 1, contiguous to its upper end, is providedwith a bearing 21 in which isslidably mounted a rod 22, one end of whichrod, i. e., its inner end, is pivotally connected with a 'connectingrod23 carried by the crank portion 24 of the shaft v18, the arrangementbeing such that the rotation of the crank shaft effects positively thereciprocation of the rod 22.

- The outer end of the rod 22 is split longitudinally as at 25 for theaccommodation of the inner end of a fiat longitudinally extendingcutting blade 26. Surrounding the split end of the rod 22 is a splitsleeve 27 and, as shown in Figure 5, this sleeve is tightened intoclamping engagement with the outer end of the rod 22 and the blade 26 bymeans of a vertical screw 28. This screw passes through registeringopening formed ed and received within a threaded opening provided in thebottom of the sleeve 27. By tightening the screw 28 frictional pressurewill be exerted onthe blade and positively hold the latter in connectionwith the reciprocating rod 22. The sleeve 27 also grips the sidesof theblade to prevent lateral twisting and turning movement on the part ofsaid blade, whereby the latter is maintained in rigid longitudinalrelationship-with the rod 22.

The upper end of the standard 1 terminates in a yoke or goose neck 29which carries, as shown in Figure 6, a horizontally extending guideplate 30, the under surface of which being provided with a groove 31adapted tion of the yoke 29. It will thus be seen that the spacedguides30 and 32 co-operate with the cutter or blade 26, which is of thinmetallic form, to hold the latter confined except for" its requiredlongitudinal reciprocatory movement. By thus limiting the plane ofoperation of the cutter the machine may be very readily adapted to theoperation of-trimming heel seats. 1

In order to support the shoe in connection with the machine and topermit of the proper presentation of the heel seat' to the cutter, I

there is provided a supporting jack 35. This jack includes -a verticalscrew 36 which is slidably mounted in a plain bore formed ver tically ina stationary hubor bearing 37 projecting from the lower part of thestandard 1. The screw 36 carries nuts 38, disposed on opposite sides ofthe bearing 37, nuts being employed for the purpose of controllingvertical operating position of the screw 36. The upper end of the screw36 is provided with a head 39 upon which is pivotally mounted forcompound rocking movement a vertically extending post 40. The upper endof this post is pivotally connected as at 41 to'a clevis 42 which-inturn, ispivotally connected as at 43 to a jack stud 44. It will beobserved that the pivots 41 and 43 have their axes disposed inerpendicular relationship, which admits of exibility in the positioningvided in the connection between the lower end of the post 40 and thescrew 36.

In operation, a shoe 45 fitted with an internal last 46 is placed on thestud 44 with the stud positioned in a substantially vertical opening 47formed in the last. The shoe is then manually moved by the operator ofthe machine so that the edge portions of its heel structure will engagewith a disk shaped guide 48 mounted for rotation upon a vertical axis49, the latter being carried in connection with a bracket plate 50 whichhas its inner end adjustably connected with a supporting bracket 51.This bracket, in' turn, is mounted for vertical adjustment as at 52, inconnection with the standard 1 or its removablehead or yoke 29. It willbe understood that the adjustment between the bracket members 50 and 51and the yoke 29 permits the disk 48 to be adjusted advantageously inrelation to the cutting blade 26.

The operator applies the lasted shoe to the stud 44 and places the heelportion of the shoe against the disk guide 48. By then rotating the shoeabout the axis of the stud 44, while the heel is maintained inengagement with the guide 48, a beveled out or surface 53 will beproduced on theheel engaging portion of the shoe sole, which cut orsurface will correspond substantially to the concave heel seat ofa'wooden heel 54. This operation may be carried out quickly, accuratelyand economically together with uniform workmanship with the result thatthe operation of trimming heels will not prove so costly as comparedwith former or prior methods and at the same time increased productionper operative employed in this operation is secured. The blades orcutters 26 when, worn, broken or'dulled may be readily removed anda newor renewed blade in- I frame and disposed beneath the cutting blade.

serted. Furthermore, adjustments provided both in the supporting jackand for the guide member'48 permitshoes of varying styles and size to bereadily adapted to the machine.

\ lVhat is claimed is:

1. A heel seat trimming machine comprising a frame formed. to include apair of spaced horizontally disposed guides, a cutting blade slidablymounted in said guides, power driven means connected with said blade foreffecting the reciprocation thereof, a sole engaging guide arrangedbeneath said blade, and an adjustable shoe supporting. jack carried inconnection with said 2. Ina heel seat trimming machine, a sup-' portingframe provided with a pair of spaced bearings, a power drivenreciprocatory cutter slidably mounted in connection with said bearings,said blade projecting through. a

work-receiving space provided in said frame between said bearings, asole guide adjustably carried in connection with said frame and arrangedbeneath said cutter adjacent to said work-receiving space, and a shoesupporting jack mounted for universal movement in connection with saidframe below said cutter-and in registration with said a space.

3. In a heel seat trimming machine, a supporting frame. a yoke shapedcutter head formed with said frame, said cutter head being provided witha pair of longitudinally spaced. horizontally extending bearings, acutter slidably mounted in connection with said bearings, means foreffecting the reciprocationof said cutter, a shoe support adjustablymounted below said cutter, and a sole edge guide disk carried by saidframe and arranged immediately below said cutter adjacent to one of saidbearings.

4. In a heel seat trimming machine, a supporting frame, a cutter headformed with said frame, a crank shaft rotatably mounted in connectionwith said frame, a

cutter holder slidably mounted in bearings I holder slidably'mounted inconnection with said bearing for movement in a horizontal plane, a crankshaft journaled for rotation with bearings carried by said standard,means for rotating said crank shaft, a connecting rod between saidholder and said crank shaft for reciprocating said holder upon therotation of said crank shaft, the forward end of said holder beingprovided with a slot, a frictional clamping sleeve surrounding theslotted end of said holder, a flat cutting blade having the inner endthereof received within the slot provided within said holder andpositively retained within said slot by said clampingsleeve, a secondbearing formed in connection with said cutter head for the slidablereception of said blade, and an outer bearing adjustably carried by saidcutter head for slidably supporting the extreme outer end of said cutterblade.

' 6. In a heel seat trimming machine, a supporting frame, a cuttingblade mounted for reciprocation in said frame and confined to ahorizontal plane of movement, a guide disk arranged immediately belowsaid cutting blade, and a pair of relatively adjustable supports forsaid guide disk for varying the positions of the latter with respect tothe cutting blade. a 7. In a heel seat trimming machine, a frame, acutting blade mounted for recipror cation in said frame and confined toa horizontal plane ofinovement, a pair of spaced bearings for saidblade, a rotatable disk Y shaped sole engaging guide arranged beneathsaid blade and having its guiding edge protruding outside one of saidbearings for engagementwith the sole edge of the shoe operated upon, anda horizontally adjustable support for said guide disk for varying theposition of the latter withrespect to the cuttihg blade.

8. In a heel seat trimming machine, a supv porting frame, a cuttingblade mounted for horizontal reciprocation in said frame, a pair ofspaced bearings forsaid blade, the bearings and theframe being formed toprovide a work receiving space therebetween through which said bladeprojects, a guide disk for the sole edge of a shoe adjustably carried inconnection with said frame and arranged bc-'- neath said cutting bladeadjacent to said work receiving space, and an adjustable connectionbetween one of said bearings and said frame by which the hearing may bemoved horizontally to vary the width of said work receiving space. v

9. A heel seat trimming machine, comprising a standard formed with ahorizontal bearing near its upper end, a cutter holder slidably mountedin connection with said bearing for movement in a horizontal plane,means for effecting the reciprocation of said holder, a fiat cuttingblade carried by said holderand having one end' detachably con- 40nected therewith, a second bearing carried by said standard for theslidable reception of the extreme outer end of said blade, and a shoe 7guard arranged immediately below and positioned intermediate the ends ofsaid cutting 5 blade.

In testimony. whereof we aflix our signatures.

ALBERT c. ROGGE. HIRAM GORDON. A

